CVE-2018-18607

Published: 23 October 2018

An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
binutils
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(2.32-8ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2.32-8ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.30-21ubuntu1~18.04.3)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (2.26.1-1ubuntu1~16.04.8+esm1)
Ubuntu 14.04 ESM (Trusty Tahr) Needs triage

Patches:
Upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=102def4da826b3d9e169741421e5e67e8731909a